E202075_HD404889 Datasheet, PDF (133/202 Pages) Renesas Technology Corp – Low-Voltage AS Microcomputers with On-Chip LCD Circuit

R70/AN0
R71/AN1
R72/AN2
R73/AN3
VCC
GND
HD404889/HD404899/HD404878/HD404868 Series
Interrupt flag
(IFAD)
Encoder
3
A/D data
register
(ADRU, ADRM, ADRL)
+
COMP
–
A/D
control
logic
A/D mode
register
(AMR)
Conversion time control
Reference
voltage control
A/D
start flag
(ADSF)
Operating mode signal (set to 1 in
stop, watch, and subactive modes,
D/A
and during module standby)
Figure 79-2 A/D Converter Block Diagram (HD404868 Series)
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